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<title>class RBS::Subtractor - rbs: Ruby Standard Library Documentation</title>


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    <li ><a href="#method-i-absolute_typename">#absolute_typename</a>
    <li ><a href="#method-i-access_modifier-3F">#access_modifier?</a>
    <li ><a href="#method-i-call">#call</a>
    <li ><a href="#method-i-cvar_exist-3F">#cvar_exist?</a>
    <li ><a href="#method-i-each_member">#each_member</a>
    <li ><a href="#method-i-filter_members">#filter_members</a>
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    <main role="main" aria-labelledby="class-RBS::Subtractor">
    <h1 id="class-RBS::Subtractor" class="class">
      class RBS::Subtractor
    </h1>

    <section class="description">
    
    </section>

      <section id="5Buntitled-5D" class="documentation-section">





                <section id="public-class-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Class Methods</h3>
                </header>

                  <div id="method-c-new" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">new</span><span
                                class="method-args">(minuend, subtrahend)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="new-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 5</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">minuend</span>, <span class="ruby-identifier">subtrahend</span>)
  <span class="ruby-ivar">@minuend</span> = <span class="ruby-identifier">minuend</span>
  <span class="ruby-ivar">@subtrahend</span> = <span class="ruby-identifier">subtrahend</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                          </section>

                <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Instance Methods</h3>
                </header>

                  <div id="method-i-call" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">call</span><span
                                class="method-args">(minuend = @minuend, context: nil)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="call-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 10</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">call</span>(<span class="ruby-identifier">minuend</span> = <span class="ruby-ivar">@minuend</span>, <span class="ruby-value">context:</span> <span class="ruby-keyword">nil</span>)
  <span class="ruby-identifier">minuend</span>.<span class="ruby-identifier">map</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">decl</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">case</span> <span class="ruby-identifier">decl</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">Constant</span>
      <span class="ruby-identifier">name</span> = <span class="ruby-identifier">absolute_typename</span>(<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
      <span class="ruby-identifier">decl</span> <span class="ruby-keyword">unless</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">constant_name?</span>(<span class="ruby-identifier">name</span>)
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">Interface</span>
      <span class="ruby-identifier">name</span> = <span class="ruby-identifier">absolute_typename</span>(<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
      <span class="ruby-identifier">decl</span> <span class="ruby-keyword">unless</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">interface_name?</span>(<span class="ruby-identifier">name</span>)
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">Class</span>, <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">Module</span>
      <span class="ruby-identifier">name</span> = <span class="ruby-identifier">absolute_typename</span>(<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
      <span class="ruby-keyword">case</span>
      <span class="ruby-keyword">when</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">class_decl?</span>(<span class="ruby-identifier">name</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">Class</span>)
        <span class="ruby-identifier">filter_members</span>(<span class="ruby-identifier">decl</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
      <span class="ruby-keyword">when</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">module_decl?</span>(<span class="ruby-identifier">name</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">Module</span>)
        <span class="ruby-identifier">filter_members</span>(<span class="ruby-identifier">decl</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
      <span class="ruby-keyword">when</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">constant_name?</span>(<span class="ruby-identifier">name</span>)
        <span class="ruby-keyword">nil</span>
      <span class="ruby-keyword">else</span>
        <span class="ruby-identifier">decl</span>
      <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">Global</span>
      <span class="ruby-identifier">decl</span> <span class="ruby-keyword">unless</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">global_decls</span>[<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">name</span>]
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">TypeAlias</span>
      <span class="ruby-identifier">name</span> = <span class="ruby-identifier">absolute_typename</span>(<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
      <span class="ruby-identifier">decl</span> <span class="ruby-keyword">unless</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">type_alias_decls</span>[<span class="ruby-identifier">name</span>]
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">ClassAlias</span>
      <span class="ruby-identifier">name</span> = <span class="ruby-identifier">absolute_typename</span>(<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">new_name</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
      <span class="ruby-identifier">decl</span> <span class="ruby-keyword">unless</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">class_alias?</span>(<span class="ruby-identifier">name</span>) <span class="ruby-operator">||</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">class_decl?</span>(<span class="ruby-identifier">name</span>)
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">ModuleAlias</span>
      <span class="ruby-identifier">name</span> = <span class="ruby-identifier">absolute_typename</span>(<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">new_name</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
      <span class="ruby-identifier">decl</span> <span class="ruby-keyword">unless</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">module_alias?</span>(<span class="ruby-identifier">name</span>) <span class="ruby-operator">||</span> <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">module_decl?</span>(<span class="ruby-identifier">name</span>)
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;unknwon decl: #{(_ = decl).class}&quot;</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>.<span class="ruby-identifier">compact</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                          </section>

                <section id="private-instance-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Private Instance Methods</h3>
                </header>

                  <div id="method-i-absolute_typename" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">absolute_typename</span><span
                                class="method-args">(name, context:)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="absolute_typename-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 177</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">absolute_typename</span>(<span class="ruby-identifier">name</span>, <span class="ruby-value">context:</span>)
  <span class="ruby-keyword">while</span> <span class="ruby-identifier">context</span>
    <span class="ruby-identifier">ns</span> = <span class="ruby-identifier">context</span>[<span class="ruby-value">1</span>] <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span>
    <span class="ruby-identifier">name</span> = <span class="ruby-identifier">name</span>.<span class="ruby-identifier">with_prefix</span>(<span class="ruby-identifier">ns</span>.<span class="ruby-identifier">to_namespace</span>)
    <span class="ruby-identifier">context</span> = <span class="ruby-identifier">_</span> = <span class="ruby-identifier">context</span>[<span class="ruby-value">0</span>]
  <span class="ruby-keyword">end</span>
  <span class="ruby-identifier">name</span>.<span class="ruby-identifier">absolute!</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-access_modifier-3F" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">access_modifier?</span><span
                                class="method-args">(decl)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="access_modifier-3F-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 160</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">access_modifier?</span>(<span class="ruby-identifier">decl</span>)
  <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Public</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Private</span>)
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-cvar_exist-3F" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">cvar_exist?</span><span
                                class="method-args">(owner, name)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="cvar_exist-3F-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 118</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">cvar_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">name</span>)
  <span class="ruby-identifier">each_member</span>(<span class="ruby-identifier">owner</span>).<span class="ruby-identifier">any?</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">case</span> <span class="ruby-identifier">m</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">ClassVariable</span>
      <span class="ruby-identifier">m</span>.<span class="ruby-identifier">name</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">name</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-each_member" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">each_member</span><span
                                class="method-args">(owner, &amp;block)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="each_member-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 127</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">each_member</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-operator">&amp;</span><span class="ruby-identifier">block</span>)
  <span class="ruby-keyword">return</span> <span class="ruby-identifier">enum_for</span>((<span class="ruby-identifier">__method__</span> <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span>), <span class="ruby-identifier">owner</span>) <span class="ruby-keyword">unless</span> <span class="ruby-identifier">block</span>

  <span class="ruby-identifier">entry</span> = <span class="ruby-ivar">@subtrahend</span>.<span class="ruby-identifier">class_decls</span>[<span class="ruby-identifier">owner</span>]
  <span class="ruby-keyword">return</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">entry</span>
  <span class="ruby-identifier">decls</span> = <span class="ruby-identifier">entry</span>.<span class="ruby-identifier">decls</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">d</span><span class="ruby-operator">|</span> <span class="ruby-identifier">d</span>.<span class="ruby-identifier">decl</span> }

  <span class="ruby-identifier">decls</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">d</span><span class="ruby-operator">|</span> <span class="ruby-identifier">d</span>.<span class="ruby-identifier">members</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span> <span class="ruby-identifier">block</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">m</span>) } }
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-filter_members" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">filter_members</span><span
                                class="method-args">(decl, context:)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="filter_members-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 48</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">filter_members</span>(<span class="ruby-identifier">decl</span>, <span class="ruby-value">context:</span>)
  <span class="ruby-identifier">owner</span> = <span class="ruby-identifier">absolute_typename</span>(<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)

  <span class="ruby-identifier">context</span> = <span class="ruby-identifier">_</span> = [<span class="ruby-identifier">context</span>, <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">name</span>]
  <span class="ruby-identifier">children</span> = <span class="ruby-identifier">call</span>(<span class="ruby-identifier">decl</span>.<span class="ruby-identifier">each_decl</span>.<span class="ruby-identifier">to_a</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>) <span class="ruby-operator">+</span>
    <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">each_member</span>.<span class="ruby-identifier">reject</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span> <span class="ruby-identifier">member_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">m</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>) }
  <span class="ruby-identifier">children</span> = <span class="ruby-identifier">filter_redundunt_access_modifiers</span>(<span class="ruby-identifier">children</span>)
  <span class="ruby-keyword">return</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">children</span>.<span class="ruby-identifier">empty?</span>

  <span class="ruby-identifier">update_decl</span>(<span class="ruby-identifier">decl</span>, <span class="ruby-value">members:</span> <span class="ruby-identifier">children</span>)
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-filter_redundunt_access_modifiers" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">filter_redundunt_access_modifiers</span><span
                                class="method-args">(decls)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="filter_redundunt_access_modifiers-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 148</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">filter_redundunt_access_modifiers</span>(<span class="ruby-identifier">decls</span>)
  <span class="ruby-identifier">decls</span> = <span class="ruby-identifier">decls</span>.<span class="ruby-identifier">dup</span>
  <span class="ruby-identifier">decls</span>.<span class="ruby-identifier">pop</span> <span class="ruby-keyword">while</span> <span class="ruby-identifier">access_modifier?</span>(<span class="ruby-identifier">decls</span>.<span class="ruby-identifier">last</span>)
  <span class="ruby-identifier">decls</span> = <span class="ruby-identifier">decls</span>.<span class="ruby-identifier">map</span>.<span class="ruby-identifier">with_index</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">decl</span>, <span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">access_modifier?</span>(<span class="ruby-identifier">decl</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">access_modifier?</span>(<span class="ruby-identifier">decls</span>[<span class="ruby-identifier">i</span> <span class="ruby-operator">+</span> <span class="ruby-value">1</span>])
      <span class="ruby-keyword">nil</span>
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">decl</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>.<span class="ruby-identifier">compact</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-ivar_exist-3F" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">ivar_exist?</span><span
                                class="method-args">(owner, name, kind)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="ivar_exist-3F-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 106</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">ivar_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">name</span>, <span class="ruby-identifier">kind</span>)
  <span class="ruby-identifier">each_member</span>(<span class="ruby-identifier">owner</span>).<span class="ruby-identifier">any?</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">case</span> <span class="ruby-identifier">m</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">InstanceVariable</span>
      <span class="ruby-identifier">m</span>.<span class="ruby-identifier">name</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">name</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Attribute</span>
      <span class="ruby-identifier">ivar_name</span> = <span class="ruby-identifier">m</span>.<span class="ruby-identifier">ivar_name</span> <span class="ruby-operator">==</span> <span class="ruby-keyword">false</span> <span class="ruby-operator">?</span> <span class="ruby-keyword">nil</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">m</span>.<span class="ruby-identifier">ivar_name</span> <span class="ruby-operator">||</span> <span class="ruby-value">:&quot;@#{m.name}&quot;</span>
      <span class="ruby-identifier">ivar_name</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">name</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">m</span>.<span class="ruby-identifier">kind</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">kind</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-member_exist-3F" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">member_exist?</span><span
                                class="method-args">(owner, member, context:)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="member_exist-3F-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 60</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">member_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">member</span>, <span class="ruby-value">context:</span>)
  <span class="ruby-keyword">case</span> <span class="ruby-identifier">member</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">MethodDefinition</span>
    <span class="ruby-identifier">method_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">kind</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Alias</span>
    <span class="ruby-identifier">method_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">new_name</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">kind</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">AttrReader</span>
    <span class="ruby-identifier">method_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">kind</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">AttrWriter</span>
    <span class="ruby-identifier">method_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-value">:&quot;#{member.name}=&quot;</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">kind</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">AttrAccessor</span>
    <span class="ruby-comment"># TODO: It unexpectedly removes attr_accessor even if either reader or writer does not exist in the subtrahend.</span>
    <span class="ruby-identifier">method_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">kind</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">method_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-value">:&quot;#{member.name}=&quot;</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">kind</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">InstanceVariable</span>
    <span class="ruby-identifier">ivar_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">:instance</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">ClassInstanceVariable</span>
    <span class="ruby-identifier">ivar_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">:singleton</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">ClassVariable</span>
    <span class="ruby-identifier">cvar_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">member</span>.<span class="ruby-identifier">name</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Include</span>, <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Extend</span>, <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Prepend</span>
    <span class="ruby-identifier">mixin_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">member</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Public</span>, <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Private</span>
    <span class="ruby-comment"># They should not be removed even if the subtrahend has them.</span>
    <span class="ruby-keyword">false</span>
  <span class="ruby-keyword">else</span>
    <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;unknown member: #{(_ = member).class}&quot;</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-method_exist-3F" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">method_exist?</span><span
                                class="method-args">(owner, method_name, kind)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="method_exist-3F-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 89</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">method_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">method_name</span>, <span class="ruby-identifier">kind</span>)
  <span class="ruby-identifier">each_member</span>(<span class="ruby-identifier">owner</span>).<span class="ruby-identifier">any?</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">case</span> <span class="ruby-identifier">m</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">MethodDefinition</span>
      <span class="ruby-identifier">m</span>.<span class="ruby-identifier">name</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">method_name</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">m</span>.<span class="ruby-identifier">kind</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">kind</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">Alias</span>
      <span class="ruby-identifier">m</span>.<span class="ruby-identifier">new_name</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">method_name</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">m</span>.<span class="ruby-identifier">kind</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">kind</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">AttrReader</span>
      <span class="ruby-identifier">m</span>.<span class="ruby-identifier">name</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">method_name</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">m</span>.<span class="ruby-identifier">kind</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">kind</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">AttrWriter</span>
      <span class="ruby-value">:&quot;#{m.name}=&quot;</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">method_name</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">m</span>.<span class="ruby-identifier">kind</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">kind</span>
    <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Members</span><span class="ruby-operator">::</span><span class="ruby-constant">AttrAccessor</span>
      (<span class="ruby-identifier">m</span>.<span class="ruby-identifier">name</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">method_name</span> <span class="ruby-operator">||</span> <span class="ruby-value">:&quot;#{m.name}=&quot;</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">method_name</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">m</span>.<span class="ruby-identifier">kind</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">kind</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-mixin_exist-3F" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">mixin_exist?</span><span
                                class="method-args">(owner, mixin, context:)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="mixin_exist-3F-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 137</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">mixin_exist?</span>(<span class="ruby-identifier">owner</span>, <span class="ruby-identifier">mixin</span>, <span class="ruby-value">context:</span>)
  <span class="ruby-identifier">candidates</span> = <span class="ruby-identifier">typename_candidates</span>(<span class="ruby-identifier">mixin</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">context:</span> <span class="ruby-identifier">context</span>)
  <span class="ruby-identifier">each_member</span>(<span class="ruby-identifier">owner</span>).<span class="ruby-identifier">any?</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">case</span> <span class="ruby-identifier">m</span>
    <span class="ruby-keyword">when</span> <span class="ruby-identifier">mixin</span>.<span class="ruby-identifier">class</span>
      <span class="ruby-comment"># @type var m: AST::Members::Include | AST::Members::Extend | AST::Members::Prepend</span>
      <span class="ruby-identifier">candidates</span>.<span class="ruby-identifier">include?</span>(<span class="ruby-identifier">m</span>.<span class="ruby-identifier">name</span>)
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-typename_candidates" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">typename_candidates</span><span
                                class="method-args">(name, context:)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="typename_candidates-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 186</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">typename_candidates</span>(<span class="ruby-identifier">name</span>, <span class="ruby-value">context:</span>)
  <span class="ruby-identifier">ret</span> = [<span class="ruby-identifier">name</span>.<span class="ruby-identifier">absolute!</span>, <span class="ruby-identifier">name</span>.<span class="ruby-identifier">relative!</span>]
  <span class="ruby-keyword">return</span> <span class="ruby-identifier">ret</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">name</span>.<span class="ruby-identifier">absolute?</span>

  <span class="ruby-keyword">while</span> <span class="ruby-identifier">context</span>
    <span class="ruby-identifier">ns</span> = <span class="ruby-identifier">context</span>[<span class="ruby-value">1</span>] <span class="ruby-keyword">or</span> <span class="ruby-identifier">raise</span>
    <span class="ruby-identifier">name</span> = <span class="ruby-identifier">name</span>.<span class="ruby-identifier">with_prefix</span>(<span class="ruby-identifier">ns</span>.<span class="ruby-identifier">to_namespace</span>)
    <span class="ruby-identifier">ret</span>.<span class="ruby-identifier">concat</span> [<span class="ruby-identifier">name</span>.<span class="ruby-identifier">absolute!</span>, <span class="ruby-identifier">name</span>.<span class="ruby-identifier">relative!</span>]

    <span class="ruby-identifier">context</span> = <span class="ruby-identifier">_</span> = <span class="ruby-identifier">context</span>[<span class="ruby-value">0</span>]
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">ret</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-update_decl" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">update_decl</span><span
                                class="method-args">(decl, members:)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="update_decl-source">
            <pre><span class="ruby-comment"># File rbs-3.2.1/lib/rbs/subtractor.rb, line 164</span>
        <span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">update_decl</span>(<span class="ruby-identifier">decl</span>, <span class="ruby-value">members:</span>)
  <span class="ruby-keyword">case</span> <span class="ruby-identifier">decl</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">Class</span>
    <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">class</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">type_params:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">type_params</span>, <span class="ruby-value">super_class:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">super_class</span>,
                    <span class="ruby-value">annotations:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">annotations</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>, <span class="ruby-value">comment:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">comment</span>,
                    <span class="ruby-value">members:</span> <span class="ruby-identifier">members</span>)
  <span class="ruby-keyword">when</span> <span class="ruby-constant">AST</span><span class="ruby-operator">::</span><span class="ruby-constant">Declarations</span><span class="ruby-operator">::</span><span class="ruby-constant">Module</span>
    <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">class</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">name:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">name</span>, <span class="ruby-value">type_params:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">type_params</span>, <span class="ruby-value">self_types:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">self_types</span>,
                    <span class="ruby-value">annotations:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">annotations</span>, <span class="ruby-value">location:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">location</span>, <span class="ruby-value">comment:</span> <span class="ruby-identifier">decl</span>.<span class="ruby-identifier">comment</span>,
                    <span class="ruby-value">members:</span> <span class="ruby-identifier">members</span>)
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
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this.manage_mob_classes();
window.addEventListener('resize', this.handleResize)
//this.isOpen !=  (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent));
},
destroyed() {
window.removeEventListener('resize', this.handleResize)
},
created() {
//manage_mob_classes();
},

methods : {
isMobile() {
  return (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent));
},

  handleResize() {
    if (!this.isMobile()) {
      this.isOpen = window.innerWidth > 800;
    }
  },

  manage_mob_classes() {
    if (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)) {
      $("nav").addClass("mob_nav");
      $("main").addClass("mob_main");
      $("#extraz").addClass("mob_extraz");
      $("#carbonads-container").addClass("mob_carbonads-container");
      this.isOpen  = false;
    } else {
      $("nav").removeClass("mob_nav") 
        $("main").removeClass("mob_main");
      $("#extraz").removeClass("mob_extraz");
      $("#carbonads-container").removeClass("mob_carbonads-container");
      this.isOpen  = true;
    }
  },

  toggleNav() {
    this.isOpen =! this.isOpen ;
    // alert("Toggle nav!");
    console.log("toggleNav() click: " + this.isOpen );
  }
}
})

$("#carbonads-container").append(ads);


$(function() {

    var darkmode = Cookies.get("darkmode");
    console.log("Document ready: " + darkmode);

    if ( darkmode  == "true" ) {
      $('#cssSelect').text("Light mode");
    } else {
      $('#cssSelect').text("Dark mode");
     }

    $('body').css('display','block');
    });

</script>

    
  </body> 
</html>

